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In the twentieth and early twenty-first centuries, Gail Roberta Martin specialized in biochemistry and embryology, more specifically cellular…
EmbryosEmbryos--PhysiologyEmbryos--AnatomyBlastocystRetrovirus InfectionsMesenchyme is a type of animal tissue comprised of loose cells embedded in a mesh of proteins and fluid, called the extracellular matrix. The loose,…
MesenchymeGastrulationStem CellsMesenchymal Stem CellsEmbryologyIntroduced by Conrad Hal Waddington in 1942, the concept of epigenetics gave scientists a new paradigm of thought concerning embryonic development,…
EpigenomicsEpigeneticsFranz Keibel studied the embryos of humans and other animals in Europe at the turn of the twentieth century. He lived and worked in several different…
EmbryologyIn September 2003, Robert L. Goldenberg and Cortney Thompson published the article “The Infectious Origins of Stillbirth” in the American Journal of…
LiteratureFetal deathInfectionQ FeverMalaria in pregnancyIn 1975 John Gurdon, Ronald Laskey, and O. Raymond Reeves published "Developmental Capacity of Nuclei Transplanted from Keratinized Skin Cells of…
Nuclear Transfer TechniquesExperimentsPublicationsFrogsNuclear TransplantationTwo main elements characterize the skeletal morphology of turtles: the carapace and the plastron. For a turtle, the carapacial ridge begins in the…
TurtlesMorphology (Animals)EmbryosGerm CellsEmbryologyMatthew Meselson, Franklin Stahl, and Jerome Vinograd, developed cesium chloride, or CsCl, density gradient centrifugation in the 1950s at the…
TechnologyDNA ReplicationDNA replication--RegulationCentrifugation, Density GradientOrganonitrogen compoundsGestational diabetes is a medical condition that causes blood sugar levels to become abnormally high, which manifests for the first-time during…
Diabetes in pregnancyGestational DiabetesPregnancy--ComplicationsHigh-Risk PregnancyDiabetes in womenPossums is a 174-page book consisting of a series of essays written about the Virginia opossum (Didelphis virginiana), the only living marsupial in…
LiteratureVirginia opossumEmbryologyMarsupialsNatural history